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TaxNo: 7395Genus Pachybollandoceras
Suborder: Goniatitina
Superfamily: Pericycloidea
Family: Maxigoniatitidae
Genus: Pachybollandoceras
Qualifier: ge
Author: Bockwinkel, Korn & Ebbighausen 2010, p. 244
Lower Boundary: Fascip./Ammon.--Bollandoc./Bollandit. BZ, 345.3 million years
Upper Boundary: Bollandoc./Bollandit.--Beyrichoceras BZ, 334.5 million years